Database, Server, Information Processing Method, and Storage Medium

1. An information processing system comprising: a user equipment; and a server including a processor and memory that stores a database, the database holding a plurality of pieces of sample data for a plurality of samples respectively, the database further holding a plurality of three-dimensional structure models respectively corresponding to the plurality of pieces of sample data, respectively, each of the plurality of pieces of sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a corresponding one of the plurality of samples, and each of the plurality of three-dimensional structure models including positions of particles constituting a corresponding one of the plurality of samples, wherein the user equipment is configured to send target sample data to the server, the target sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a target sample, and the processor is configured to receive the target sample data from the user equipment, search the database using the target sample data as a search query to identify a selected piece of sample data from among the plurality of pieces of sample data in the database, the selected piece of sample data exhibiting a similarity measure of a change in intensity in the selected piece of sample data to a change in intensity in the target sample data, and the similarity measure being equal to or greater than a threshold, identify a three-dimensional structure model corresponding to the identified selected piece of sample data from the plurality of three-dimensional structure models in the database, and output the identified three-dimensional structure model as a three-dimensional structure model corresponding to the target sample data.

2. A server in an information processing system including user equipment, the server comprising: memory storing a database, the database holding a plurality of pieces of sample data for a plurality of samples, respectively, the database further holding a plurality of three-dimensional structure models respectively corresponding to the plurality of pieces of sample data, respectively, each of the plurality of pieces of sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a corresponding one of the plurality of samples, and each of the plurality of three-dimensional structure models including positions of particles constituting a corresponding one of the plurality of samples; and a processor configured to receive target sample data from the user equipment, the target sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a target sample, search the database using the target sample data as a search query to identify a selected piece of sample data from among the plurality of pieces of sample data in the database, the selected piece of sample data exhibiting a similarity measure of a change in intensity in the selected piece of sample data to a change in intensity in the target sample data, and the similarity measure being equal to or greater than a threshold, identify a three-dimensional structure model corresponding to the identified selected piece of sample data from the plurality of three-dimensional structure models in the database, and output the identified three-dimensional structure model as a three-dimensional structure model corresponding to the target sample data.

3. The server according to claim 2, wherein each of the plurality of pieces of sample data is small-angle X-ray scattering data.

4. The server according to claim 2, wherein the similarity measure is represented by a cosine similarity measure of a vector representing a series of intensities in the selected piece of sample data to a vector representing a series of intensities in the target sample data.

5. The server according to claim 2, wherein the similarity measure is represented by a reciprocal of a Euclidean distance of a normalized vector of a series of intensities in selected piece of sample data to a normalized vector of a series of intensities of the target sample data.

6. A non-transitory storage medium storing an information processing program that causes an information processing system to perform functions and is executed by the information processing system, the information processing system including user equipment and a server, the functions comprising: sending, by the user equipment target sample data to the server, the server storing a database, the target sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a target sample, the database holding a plurality of pieces of sample data for a plurality of samples, respectively, the database further holding a plurality of three-dimensional structure models respectively corresponding to the plurality of pieces of sample data, respectively, each of the plurality of pieces of sample data representing diffraction or scattering when electromagnetic waves or particles are incident on a corresponding one of the plurality of samples, and each of the plurality of three-dimensional structure models including positions of particles constituting a corresponding one of the plurality of samples; receiving, by the server, the target sample data from the user equipment; searching, by the server, the database using the target sample data as a search query to identify a selected piece of sample data from among the plurality of pieces of sample data in the database, the selected piece of sample data exhibiting a similarity measure of a change in intensity in the selected piece of sample data to a change in intensity in the target sample data, and the similarity measure being equal to or greater than threshold; identifying, by the server, a three-dimensional structure model corresponding to the identified selected piece of sample data from the plurality of three-dimensional structure models in the database; and outputting, by the server, the identified three-dimensional structure model as a three-dimensional structure model corresponding to the target sample data.